QDTB® Transformer

Product Search

Find the right transformer for your needs

Cabinet APF Series Active Harmonic Filters

4 Models available

Cabinet APF Active Harmonic Filters

Images are for illustration purposes only

Cabinet Active Harmonic Filter — 100–300 A, 400 V / 690 V

The cabinet active power filter (APF) packages the full compensation rating in a single floor-standing enclosure for central installation at a main switchboard or PCC. Rated 100–300 A at 400 V or 690 V, it cancels harmonics, reduces THDi to below 5%, corrects power factor and relieves transformers and cables of harmonic loading.

Key Features

Single floor-standing enclosure for central PCC installation

100–300 A compensation current at 400 V or 690 V

Reduces THDi to below 5% and corrects power factor

Closed-loop harmonic cancellation up to the 25th order

Integrated protection and touchscreen monitoring

Suitable for retrofit where a modular rack is impractical

Applications

  • Main switchboards of manufacturing plants
  • HVAC and pumping plant rooms
  • Hospitals and medical imaging facilities
  • Water treatment plants
  • Retrofit of existing low-voltage panels

Specifications Range

All specifications and dimensions can be customized upon request

Model Selector

Key parametersModel Range
Capacity100–300 A
Rated Voltage0.4
Frequency (Hz)50
StandardIEEE 519, IEC 61000-3-6
Select 2-3 models to compare
CompareModelSeriesCurrent (A)HV Voltage (kV)WeightDimensions
APF-C-100Cabinet APF100A0.4
APF-C-150Cabinet APF150A0.4
APF-C-200Cabinet APF200A0.4
APF-C-300Cabinet APF300A0.4

Product Drawing

Electrical Equipment - APF-C-200

APPEARANCE
APF-C-200

Note: This is a general product illustration. For detailed technical drawings and specifications, please contact our engineering team.

- Frequently Asked Questions

Where should a cabinet APF be installed?

A cabinet APF is typically installed centrally at the main low-voltage switchboard or point of common coupling, so a single unit compensates the harmonics of the whole installation.

Does an APF also correct power factor?

Yes, in addition to harmonic cancellation the APF can inject reactive current to improve displacement power factor and reduce demand penalties.

Instant Selection & Quote Calculator

Select your specifications to get an estimated price instantly.

1 · Configure
2 · Your price
EXW (FOB Qingdao)
$8,750
Range $8,050 ~ $9,4508%)
Price Breakdown
Base price (interpolation)$8,750
× Product factor×1.0000
× Country factor×1.0000
× Copper-linked factor×1.0000
+ Options / accessories$0
Shipping quoted separately per destination port.

Complete equipment — no winding copper linkage

Reference prices are for estimation only and do not constitute a formal offer.

3 · Get this quote

We will reply with your latest quote instantly.

Related Engineering Calculators

Free sizing and pricing tools for this product category.